粘贴碳纤维布或增大截面加固梁现场荷载试验分析

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摘要针对某既有建筑活荷载大幅度增加的改造需要，现场采用粘贴碳纤维布或增大梁截面两种方法对工程梁进行补强加固，通过现场静荷载试验，对比分析两种方法下碳纤维布与钢筋应变、梁挠度和裂缝随荷载变化的规律，以评定加固效果。根据碳纤维布加固后试验梁挠度及碳纤维布应变过大的特征，提出基于挠度控制的受弯RC梁正截面碳纤维布加固设计计算方法。

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	李学勋
	陈奕柏
	李东海

关键词：超大荷载碳纤维布增大梁截面对比试验

Abstract： To meet the needs of strengthening rehabilitation of existing practical project, engineering beams were strengthened by CFRP and increasing section, and field loading test for strengthened beams were conducted. The strain of CFRP and steel bar, beams’ deflection and crack were comparatively analyzed to evaluate its reinforcement effect. Based on the experiment，a design method that based on deflection control approach was proposed to strengthen the moment capacity of bending section.

Key words： super large load carbon fiber sheet increase beams section contrast test

引用本文:

李学勋,陈奕柏,李东海. 粘贴碳纤维布或增大截面加固梁现场荷载试验分析[J]. 建筑技术, 2017, 48(4): 430-433.

LI Xue-xun,CHEN Yi-bai,LI Dong-hai. IN-SITU LOAD TEST ANALYSIS OF BEAMS STRENGTHENED
BY CFRP AND INCREASING SECTION[J]. Architecture Technology, 2017, 48(4): 430-433.

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http://www.jzjs.com/CN/ 或 http://www.jzjs.com/CN/Y2017/V48/I4/430